Truss.



H. D. OBRIEN.

TRUSS.

APPLICATION FILED JUNE 9, 1914.

1,129,501. Patented Feb.23,1915.

Inventor Attorneys THE NORRIS PETERS CQ, PHOTO LITHQ, wasmm; ION D, c,

HENRY DANIEL OBRIEN, 0F FORSYTH, MONTANA.

TRUSS.

Specification of Letters Patent.

Patented Feb. 23, 1915.

Application filed .Tune 9, 1914. Serial No. 844,051.

To all whom it may concern Be it known that I, HENRY D. OBRLEN, acitizen of the United States, residing at Forsyth, in the county ofRosebud and State of Montana, have invented a new and useful Truss, ofwhich the following is a specification;

The device forming the subject matter of this application is a truss,and the invention aims to provide novel means whereby, through thecooperation of a pair of springs curved upon different radii, thepressure upon the front pad may be adjusted, through the medium of aslide, or other suitable means.

' It is within the scope of the invention to improve generally and toenhance the utility of devices of that type to which the presentinvention appertains.

With the above and the other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawing :Figures 1 and 2 are top plans showing thetruss in different positions, portions of the spring coverings beingbroken away; Fig. 3 is a rear elevation of the back pad and attendantparts, portions being removed and sectioned; Fig. 4 is a cross sectionon the line 44: of Fig. 1; and Fig. 5 is a fragmental face view of theback pad.

In carrying out the invention there is provided a main spring 1 whichpreferably is in the form of a flat strip of metal, there being asecondary spring 2 located on the outside of the main spring 1, thesecondary spring 2 being shorter than the main spring 1. The inventionincludes a back pad 3. By means of securing elements 4 one end 5 of themain spring 1 and one end 6 of the sec ondary spring 2 are secured tothe back pad 3. By means of securing elements 7, the

other end of the main spring 1 is attached to a front pad 8. The freeend 9 of the secondary spring 2 bears upon the outer face of the mainspring 1 relatively near to the front pad 8. The springs 1 and 2 arecurved upon different radii, the radius of curvature of the main spring1 being longer than the radius of curvature of the secondary spring 2.Consequently, although the free end 9 of the secondary spring 2 bearsupon the main spring 1, the secondary spring tends to bow in itsintermediate portion away from the main spring 1. A slide 10, in theform of a loop, is mounted to reciprocate upon the springs 1 and 2 inthe direction of their lengths. The pads 8 and 3 may be provided withfacings 11 of rubber or the like, including protuberances 12 which tendto permit air to enter between the casings and the body of the wearer.The springs 1 and 2 may be covered if desired as shown at 14.

When the slide 10 is moved longitudinally of the main spring 1, thesecondary spring 2 is flattened out and the pressure of the free end 9of the secondary spring 2 on the main spring 1 is increased, the freeend of the secondary spring, at the same time, being moved toward thefront pad. From the foregoing it will be observed that by merelyshifting the position of the slide 10, the pressure upon the front pad 8may be altered.

The springs 1 and 2 extend approximately half way around the body of thewearer and the truss may be applied to either side of the body of thewearer by a simple inversion of the truss.

Having thus described the invention, what is claimed as new is A trusscomprising a curved, body encircling main spring; a pad carried by themain spring; a secondary spring disposed upon the outside of the mainspring and curved upon a shorter radius than the main spring, one end ofthe secondary spring being secured to the main spring and the other endof the secondary spring being freely movable on the main spring towardand away from the pad; and a slide independent In testimony that I claimthe foregoing of the pad and movable upon both springs as my own, I havehereto aifixed my signalongitudinally of the springs, the slide conturein the presence of two Witnesses. stituting means for flattening thefreely HENRY DANIEL OBRIEN. movable end of the auxiliary spring andWitnesses:

constituting means for moving said end of HARRY BUTTERFIELD,

the spring toward and away from the pad. W. J. CHURCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D; C.

